Indian Health Service Ditches Mercury Fillings Completely
The Indian Health Service will stop using dental fillings that contain mercury, siding with advocates who argue the metal poses risks to patients who often have few other options for care. For decades, the agency relied on dental amalgams, a mix that includes elemental mercury.
The Case Against Mercury Fillings Just Won
However, critics have pushed back. They said it didn’t make sense to place a known neurotoxin in the mouths of people with limited access to private dentistry. Mercury in fillings releases small amounts of vapor, especially when someone chews or grinds their teeth. While this element’s exposure adds up over time, the concerns around it aren’t new. It has been linked to health problems, and global pressure to reduce its use keeps building.
The move means mercury will start disappearing from IHS dental clinics by 2027. The shift away from mercury already showed up in the data. Back in 2005, about 12% of IHS patients got those silver-looking fillings. By 2023, that number dropped to just 2%. Most dentists now use plastic composites that look more natural. It simply isn’t the go-to material it once was.
Kennedy Says IHS Mercury Ban Was an Easy Call
Health and Human Services Secretary Robert F. Kennedy Jr. called the decision a no-brainer. He said phasing out mercury protects people before problems start. He also framed it as part of the government’s responsibility to tribes. The U.S. has legal obligations to 575 federally recognized tribes, and offering mercury-free care fits that promise.
Globally, the push against this element keeps gaining steam. Countries signed onto the Minamata Convention years ago, agreeing to cut back on it wherever possible. Dental amalgam made the list. The convention set a 2034 deadline to phase it out worldwide. The U.S. will beat that by seven years, at least within the Indian Health Service. But other developed nations moved faster. Some already banned mercury fillings entirely.
Advocates Declare Victory In Mercury Fight

Rochelle Diver, who tracks environmental treaties for the International Indian Treaty Council, put it bluntly. She said the rest of the world left the U.S. in the dust. Her group pushed hard for this change. She argued that IHS patients deserve the same standard of care as anyone else. Mercury doesn’t belong in their mouths, she said, especially when better options exist.
The American Dental Association still defends amalgam’s safety. They call it durable, affordable and backed by years of use. But even they acknowledge the shift. Dentists don’t reach for mercury like they used to. Private patients rarely get silver fillings anymore. The debate now centers on who still gets them.
Charles G. Brown runs the World Alliance for Mercury-Free Dentistry. He said the divide comes down to money and choice. People on Medicaid often end up with mercury fillings because that’s what the system covers. The same goes for inmates and IHS patients. They don’t get to pick. Brown said that’s not right. Everyone should have access to mercury-free options, not just people who can afford private insurance.
Indian Health Service Joins Global Mercury Fight
Mercury use in medicine has faded elsewhere, too. Old thermometers used to contain it. Blood pressure cuffs did too. Those devices mostly disappeared from clinics. Dental fillings held on longer, but mercury’s days look numbered. The FDA still says the evidence doesn’t prove harm from amalgam for most people. But they warn certain groups should avoid it. Pregnant women, young kids and people with nerve conditions face higher risks.
The World Health Organization also wants countries to move away from it entirely. The Indian Health Service now joins that global shift. By 2027, mercury will no longer be part of routine dental care for Native patients. For advocates who fought this battle for years, it’s a long-overdue win. Activists against it can finally say goodbye forever.
